Our panniers have been designed as throw-overs that should fit almost any adventure bike or road bike. They are very adjustable with hook and loop tape on strong webbing that can go over or under the seat. There are also tabs at the rear base that can attach to various spots via straps or zip-ties and a loop on the end of the front buckle straps that could have a strap ran through it.
So far we have sold them to a KLR owner (with custom pockets) and a KTM690 rider. Both are very happy with the fit and adjust-ability.
The panniers are suitable for adventure bikes as they are made from 11oz ripstop canvas with a water resistance rating of >200 mbar. We both use them and have never had anything wet inside. This is probably due to the roll-down top (sealed with hook and loop tape) and flap over the top.
The panniers are about an 18L capacity.